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The choice in selection of visionary testing chart. Keiko Ashizawa 1 1Dept. of Ophthalmology, Shinsyu Univ. pp.193-197
Published Date 1955/2/15
DOI https://doi.org/10.11477/mf.1410202099
  • Abstract
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For testing near vision, charts composed of dots and squares are added to the regularIshihara's. With the former nine different forms were devised with variations in arrange-ments of figures.In general, the use of squares appeared to be more satisfactory than that of dots ; and when the squares were arranged in patterns the results were even better.


Copyright © 1955, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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